My goal is to have a external button to put the photon into listening mode. It works generally, but calling WiFi.listen() from my button press does not always work. It is particularly important for listening mode to work in the case where someone changes their wifi password and needs to update the p…

That is true, but WiFi.listen() in the OPs code on one side and most of the sub steps of cloud connection on the other side demand access to the WiFi module which is a shared resource. So whoever comes first (which in this case will be the system thread) will set a mutex (or any other thread sync o…

have to ask, I presumed that if wifi creds were originally setup, then the password on the wifi was changed later, the wifi connection would time out and go to the listening mode. Is that false? does it hang in a loop believing it will connect?

I’m pretty sure it won’t enter Listening Mode just by itself. One reasion: Since it could well be that the SSID stored and the one your device currently sees are the same but don’t actually name the same network (e.g. AndroidAP is quite common). So you don’t necessarily want your device to go int…

@ScruffR & @MORA . Thanks for your help. Here’s the issue though, I’m not looking for code that executes before the photon connects to wifi. I’m wanting to enter setup mode after the photon has started trying to connect to wifi but before it successfully connects. You can replicate the issue by chan…

To achieve this you’d need to interrupt any running connect and the tool for this are interrupts. But you’d need an event that triggers the interrupt. So you’d need to set up your button as a way to trigger the interrupt.

No guarantees, but give this a try //SYSTEM_THREAD(ENABLED) SYSTEM_MODE(SEMI_AUTOMATIC) STARTUP(prepare()) #define DEBOUNCE 250 volatile uint32_t msListening; void ISR() { if (millis() - msListening < DEBOUNCE) return; msListening = millis(); // start/stop listening depending on curr…

hi ScruffR: I was searching this forum, and it works perfectly to me and it’s what exactly I want. I just have a question. I saw a link from here. Photon Interrupt Simultaneous Pin Usage this link doesn’t mention about D6 can be interrupt pin. So how does your code work so perfect?

This totally looks like it’s going to work!! Thanks so much! You saved me!!! One last followup: this is totally different than how I was doing my button before. Is there a simple way to differentiate between short and long presses?

I guess you can have 2 debounce ifs… One for long one for short…??

Photon won't enter listening mode while connecting to wifi (works using setup button but not using external button)

Firmware

tslater November 17, 2015, 7:10pm 11

Is the interrupt sure to work?

System.sleep() and wake an Internet Button with one of the buttons

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Photon won't enter listening mode while connecting to wifi (works using setup button but not using external button)

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